Using Hype Pro 3.5.5 but this issue has been occuring through several versions.

When you create a button that has a hover state with a thicker border and duplicate the button, either via copy/paste or Option-drag, the hover state in the new instance of the button is offset from the position of the normal state. The original button is unaffected, just the copy of the button shows this behavior. This issue is consistent and repeatable.